---
url: https://www.eurocovers.eu/glossary/doe-recognition
term: DOE recognition (US Department of Energy)
definition: US Department of Energy recognition for the heat-retention contribution of the patented hexagonal floating cover, validating its energy-efficiency case on hot wells and digesters.
updated: 2026-05-25
---

# DOE recognition (US Department of Energy)

US Department of Energy recognition for the heat-retention contribution of the patented hexagonal floating cover, validating its energy-efficiency case on hot wells and digesters.

**DOE recognition** refers to US Department of Energy acknowledgement of the patented hexagonal
floating cover's heat-retention contribution. The cover reduces surface heat loss by 60–80%,
delivering measurable energy savings on hot wells, mesophilic anaerobic digesters, and warm
process water storage. DOE recognition is part of the validation history that distinguishes the
original patented product.